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// Copyright 2010 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Common/CommonTypes.h"
#include "VideoBackends/D3D/BoundingBox.h"
#include "VideoBackends/D3D/D3DBase.h"
#include "VideoBackends/D3D/D3DState.h"
#include "VideoBackends/D3D/GeometryShaderCache.h"
#include "VideoBackends/D3D/PixelShaderCache.h"
#include "VideoBackends/D3D/Render.h"
#include "VideoBackends/D3D/VertexManager.h"
#include "VideoBackends/D3D/VertexShaderCache.h"
#include "VideoCommon/BoundingBox.h"
#include "VideoCommon/Debugger.h"
#include "VideoCommon/IndexGenerator.h"
#include "VideoCommon/RenderBase.h"
#include "VideoCommon/Statistics.h"
#include "VideoCommon/VertexLoaderManager.h"
#include "VideoCommon/VideoConfig.h"
namespace DX11
{
// TODO: Find sensible values for these two
const u32 MAX_IBUFFER_SIZE = VertexManager::MAXIBUFFERSIZE * sizeof(u16) * 8;
const u32 MAX_VBUFFER_SIZE = VertexManager::MAXVBUFFERSIZE;
const u32 MAX_BUFFER_SIZE = MAX_IBUFFER_SIZE + MAX_VBUFFER_SIZE;
void VertexManager::CreateDeviceObjects()
{
D3D11_BUFFER_DESC bufdesc = CD3D11_BUFFER_DESC(MAX_BUFFER_SIZE,
D3D11_BIND_INDEX_BUFFER | D3D11_BIND_VERTEX_BUFFER, D3D11_USAGE_DYNAMIC, D3D11_CPU_ACCESS_WRITE);
m_vertexDrawOffset = 0;
m_indexDrawOffset = 0;
for (int i = 0; i < MAX_BUFFER_COUNT; i++)
{
m_buffers[i] = nullptr;
CHECK(SUCCEEDED(D3D::device->CreateBuffer(&bufdesc, nullptr, &m_buffers[i])), "Failed to create buffer.");
D3D::SetDebugObjectName((ID3D11DeviceChild*)m_buffers[i], "Buffer of VertexManager");
}
m_currentBuffer = 0;
m_bufferCursor = MAX_BUFFER_SIZE;
}
void VertexManager::DestroyDeviceObjects()
{
for (int i = 0; i < MAX_BUFFER_COUNT; i++)
{
SAFE_RELEASE(m_buffers[i]);
}
}
VertexManager::VertexManager()
{
LocalVBuffer.resize(MAXVBUFFERSIZE);
s_pCurBufferPointer = s_pBaseBufferPointer = &LocalVBuffer[0];
s_pEndBufferPointer = s_pBaseBufferPointer + LocalVBuffer.size();
LocalIBuffer.resize(MAXIBUFFERSIZE);
CreateDeviceObjects();
}
VertexManager::~VertexManager()
{
DestroyDeviceObjects();
}
void VertexManager::PrepareDrawBuffers(u32 stride)
{
D3D11_MAPPED_SUBRESOURCE map;
u32 vertexBufferSize = u32(s_pCurBufferPointer - s_pBaseBufferPointer);
u32 indexBufferSize = IndexGenerator::GetIndexLen() * sizeof(u16);
u32 totalBufferSize = vertexBufferSize + indexBufferSize;
u32 cursor = m_bufferCursor;
u32 padding = m_bufferCursor % stride;
if (padding)
{
cursor += stride - padding;
}
D3D11_MAP MapType = D3D11_MAP_WRITE_NO_OVERWRITE;
if (cursor + totalBufferSize >= MAX_BUFFER_SIZE)
{
// Wrap around
m_currentBuffer = (m_currentBuffer + 1) % MAX_BUFFER_COUNT;
cursor = 0;
MapType = D3D11_MAP_WRITE_DISCARD;
}
m_vertexDrawOffset = cursor;
m_indexDrawOffset = cursor + vertexBufferSize;
D3D::context->Map(m_buffers[m_currentBuffer], 0, MapType, 0, &map);
u8* mappedData = reinterpret_cast<u8*>(map.pData);
memcpy(mappedData + m_vertexDrawOffset, s_pBaseBufferPointer, vertexBufferSize);
memcpy(mappedData + m_indexDrawOffset, GetIndexBuffer(), indexBufferSize);
D3D::context->Unmap(m_buffers[m_currentBuffer], 0);
m_bufferCursor = cursor + totalBufferSize;
ADDSTAT(stats.thisFrame.bytesVertexStreamed, vertexBufferSize);
ADDSTAT(stats.thisFrame.bytesIndexStreamed, indexBufferSize);
}
void VertexManager::Draw(u32 stride)
{
u32 indices = IndexGenerator::GetIndexLen();
D3D::stateman->SetVertexBuffer(m_buffers[m_currentBuffer], stride, 0);
D3D::stateman->SetIndexBuffer(m_buffers[m_currentBuffer]);
u32 baseVertex = m_vertexDrawOffset / stride;
u32 startIndex = m_indexDrawOffset / sizeof(u16);
switch (current_primitive_type)
{
case PRIMITIVE_POINTS:
D3D::stateman->SetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_POINTLIST);
static_cast<Renderer*>(g_renderer.get())->ApplyCullDisable();
break;
case PRIMITIVE_LINES:
D3D::stateman->SetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_LINELIST);
static_cast<Renderer*>(g_renderer.get())->ApplyCullDisable();
break;
case PRIMITIVE_TRIANGLES:
D3D::stateman->SetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
break;
}
D3D::stateman->Apply();
D3D::context->DrawIndexed(indices, startIndex, baseVertex);
INCSTAT(stats.thisFrame.numDrawCalls);
if (current_primitive_type != PRIMITIVE_TRIANGLES)
static_cast<Renderer*>(g_renderer.get())->RestoreCull();
}
void VertexManager::vFlush(bool useDstAlpha)
{
if (!PixelShaderCache::SetShader(
useDstAlpha ? DSTALPHA_DUAL_SOURCE_BLEND : DSTALPHA_NONE))
{
GFX_DEBUGGER_PAUSE_LOG_AT(NEXT_ERROR,true,{printf("Fail to set pixel shader\n");});
return;
}
if (!VertexShaderCache::SetShader())
{
GFX_DEBUGGER_PAUSE_LOG_AT(NEXT_ERROR,true,{printf("Fail to set pixel shader\n");});
return;
}
if (!GeometryShaderCache::SetShader(current_primitive_type))
{
GFX_DEBUGGER_PAUSE_LOG_AT(NEXT_ERROR, true, { printf("Fail to set pixel shader\n"); });
return;
}
if (g_ActiveConfig.backend_info.bSupportsBBox && BoundingBox::active)
{
D3D::context->OMSetRenderTargetsAndUnorderedAccessViews(D3D11_KEEP_RENDER_TARGETS_AND_DEPTH_STENCIL, nullptr, nullptr, 2, 1, &BBox::GetUAV(), nullptr);
}
u32 stride = VertexLoaderManager::GetCurrentVertexFormat()->GetVertexStride();
PrepareDrawBuffers(stride);
VertexLoaderManager::GetCurrentVertexFormat()->SetupVertexPointers();
g_renderer->ApplyState(useDstAlpha);
Draw(stride);
g_renderer->RestoreState();
}
void VertexManager::ResetBuffer(u32 stride)
{
s_pCurBufferPointer = s_pBaseBufferPointer;
IndexGenerator::Start(GetIndexBuffer());
}
} // namespace
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